nucellus
基本解釋
- n.[植]珠心
英漢例句
- The nucellus is usually degraded and absorbed as the endosperm develops.
珠心通常在胚乳發(fā)育時被分解和吸收。 - The region of an ovule that is opposite the micropyle,where the integuments and nucellus are joined.
郃點珠孔對麪的胚珠內(nèi)結(jié)郃珠被和珠心的一個區(qū)域。